Up at the Cathedral Church of St. John the Divine the three youngsters are in various states. One fledged a few days ago and is exploring the Cathedral with ease and was above the nest in a turret when I arrived. One had recently fledged and was in a tree across the street in Morningside Park. (Jeremy Seto's footage of the fledge is on Flickr.) And the third was still on the nest.
The parents came to visit the eyass still on the nest. The father delivered a rodent, and the mother visited for a few minutes, right afterwards. An American Kestrel gave one of the parents a hard time, while it perched on St. Luke Hospital's Plant building.